When one of your best buddies decides to ditch you and your friends for this new girl whom he just met, but can't seem to ever leave her or even want to.

"Hey man I haven't heard from you in a while. Why don't we get the crew together and hit the bar tonight?"
--"IDK dude I just met this girl a few days ago and she's perfect, I can't find one fault about her!"

"Well keep looking! If you let her know how you feel this soon she will control you and you'll be whipped."
--"Nah not this one, she is different, we are equals in this relationship and she is my dream girl!"

"Ah sounds to me like your choosing new hoes before old bros! Have fun with that!"